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Oracle6i Forms/Reports Builder Cannot Connect To Any Database: ORA-12222 (Doc ID 755843.1)

Last updated on JULY 16, 2019

Applies to:

Oracle Net Services - Version: to
Microsoft Windows 2000
Microsoft Windows XP
Microsoft Windows Server 2003


-- Problem Statement:
Oracle Forms6i Builder: on Microsoft Windows XP.

Server: Oracle10g R2 (

When trying to connect to any database instance using Oracle6i Forms displays the following error:

     ORA-12222: TNS:No such protocol adapter

There are no problems connecting to the database from SqlPlus, TOAD, etc that use the
same tnsnames.ora file entries.

Problem reported with any/all Net Service Name/aliases.


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